Precise measurement is essential in patisserie because baking is a science where small differences can significantly affect the final result. The balance of ingredients—such as flour, fat, sugar, and liquids—directly determines texture, structure, and flavor. For example, too much flour can make a product dry and dense, while too little can cause it to collapse. Accurate measurements also ensure proper chemical reactions, such as how leavening agents work or how emulsions form. Unlike cooking, where adjustments can often be made along the way, patisserie relies on consistency and repeatability, so precise measurements are key to achieving reliable, high-quality results every time.